I have a client who purchased a new HP All-In-One that came preinstalled with Windows 8.1 Pro (no Win7 downgrade option).
Under the MS licensing terms, she is entitled to exercise the Windows downgrade rights, so she has asked me to install Windows 7 on the AIO for her.
After installing Windows 7 Pro, all of the drivers and standard software she'd use, I now need to activate the Windows 7 pro.
I've read that you can do this by using any Windows 7 Pro product key during the install and then doing the activation by phone and talking to a MS representative and explaining that I'm downgrading. But it says that I need to have the Windows 8.1 pro COA...
The problem is that the HP AIO has no COA. There is NO sticker on the computer or any accompanying documentation that displays the product key.
We are legally entitled to do this... How do I proceed?